Frederick w



(No Model.)

' F. W. MUELLER.

WALL PAPER TRIMMING MACHINE.

I Patented May 17,1892.

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WALL-PAPER-TRIYMMING MACHINE.

SPECIFICATION forming partof Letters Patent No. 475,134, dated May 17, 1892. Application filed December 14, 1891. Serial No. 415.024- (No model.)

To aZZ whom it may concern.-

Be it known that l, FREDERIoK W. MoEL- LER, of lVashington, in the Districtof Columbia, have invented certain new and useful Improvements in Wall Paper Trimming Machines; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the ac companying drawings, and to theletters of reference marked thereon, which form part of this specification.

My invention relates to certain improvements in wallpaper-trimming machines.

Heretofore in using wall-paper-trimming machines it has been found that such machines become unfit for use after ashort time, the constant movement of the roll of paper while being fed between the rollers and to the cutting-disks tending to wear not only the bed of the machine over which such roll and paper travel, but also cutting a groove in the right-hand side of the machine in which the edges of the paperbear, thereby causing such paper to be fed unevenly to the rollers and cutter and very often causingthe paper while being fed to become twisted-and torn, necessitating the removal of the roll and causing great waste and the entire abandonment of the machine.

My invention therefore consists of a bed plate preferably made in sections, so as to be easily taken apart and packed in a small space for transportation, this bed-plate being so constructed as to serve as a wearing-plate for the bed or work-table of the machine and to form a new bed for worn-out machines otherwise rendered useless, the particular construction of which will be hereinafter de: scribed. v

In the accompanying drawings, Figure 1 is a top plan view of the ordinary style of wallpaper-trimming machine with my improved wearing-plate in position. Fig. 2 is a perspective showing my improved device in sections, the end extension being rigid th erewith. Fig. 3 is a modification in perspective of the end extension, adapted to be attached to one end of the bed-plate, and Fig. 4 is a perspective of a block adapted to beinserted between the end extension and the side of the machine when it is desired to trim paper ha"- ing a very narrow edge.

Like letters of reference mark the same parts throughout the different views.

a indicates an ordinary trimming-machine having the usual feed-rolls, cutting-disks, &c.

19 indicates my improved wearing plate, made, preferably, of tin or some other hard material havinga smooth surface. This wearin g-plate is preferably made in sections and has the top smooth surface 0, over which the paper is fed, and is bent over at the points 6 and outwardly again to form the pocket or recess 6' for the reception of the roll of paper,

which is held in place by the operator while the paper is being trimmed. The front and rear sides of the section h, it will be noticed, are bent over to form a guideway or'groove h for the reception of part of the section 7, one end of which is adapted to enter 1 he guidewayorgroove of section h. The'Ob ect of having this plate made in sections is obvious, as its length can be regulated for different-sized machines bysimplymoving either of the sections back or fort As shown in Fig. 2, the partj has its front and rear edges bent over to form guideways; but in this case the bent-over portion extends but a little more than half-way of the length of this section, part of the guideway being cut away, as shownat 70, thus forming a stop is for the points of the bent-under portions of section h.

Z indicates the end piece, against which the edges of the paper to be trimmed bear as the same travels over the bed of the machine.

This end piece or extensionl can either be formed rigid with the section h, as shown in Fig. 2, or it can be provided with the extensions m m, formed integral therewith, such extensions or arms at m being adapted to enter theguideway or bent-under portion at one end of section h, thereby holding such end piece 'in position. This end piece of the bedplate is stamped out of a single piece of metal, together with the end lugs and integral therewith, as a blank, for the better packing for transportation. When unpacked for use these lugs are turned up at near right angles to the plate in such manner as to be inserted in the j together, secure the side piece Z in position,

and place the Whole into the bed of the machine. 1

With my attachment in position the machine can be used for years without any noticeable wear on any part of the machine or sides thereof.

As heretofore stated, the machines now in use become worn in a short time to such an extent that they become unserviceable. 'Fro n1 constant use the paper not only wears the plane surface ofthe bed, but also cuts a deep groove intothe side frame of the machine and in a very short while the machine is useless. WVith my invention machines which have become worn and useless can-be used again, and, in fact, are as good as new. None of the worn parts need be removed, it only .being necessary to place my-im'proved antiwearing plate in position on the old and wornont bed.

' Instead of making'the wearing-plate in sec-- tions, the same can be made in a single piece of tin or other suit-able smooth-surfaced ma-- terial. Y

Having thus fully describ 3d my invention, what I claim is- 1-. A Wall-paper-trimming machine having a bed anda guiding-edge at one side thereof, and a metallic wearing-plate removably fit- :ting saidbed and provided with an upwardlyextending edge at one side to fit said guiding- I edge, substantially'as described.

2. An' anti-wearing bed plate for wall-paper-trim ming machines, made in sections, one section having its front and rear edges turned under toform grooves or guide-ways, an endpiece secured thereto, the other section being bed of the formed with itsedges bent under to form guideways or grooves for part of its length, the cut-off portion of said last-mentioned section serving as a stop for section h when the two sections slide together, as set forth,

3. An anti-wearing bed-plate for wall-paper-trimming machines, made in-sectio'ns, having their front and rear edges bent under the upper surface of the plate to serve as guideways or grooves, the sections being formed to slide one on the other, and an end piece having arms projecting from its sides at its end to enter such guideways or grooves at an end of one section, substantially as described.

4. As a new article of manufacture, a bedplate for the bed orwork-table of wall-papertrimming machines, madein sections having their front and rear edges bent under for part of theirlength, theother section being-formed with similar bent-under portions for its entire length to form grooves 0rguideways inwhich the first-named section is adapted to-sl-ide,

and an upwardly-eXtending-end piece having arms or projections integral therewith to slide in the grooves orguideways in the end of one 7 of saidsections, as set forth.

5. The herein-described wearing-plate for wall-paper-trimming machines, made. in sec- .,tions,' one of said sections being-provided with a right-angular end piece, and means, substantially as described, for uniting-said sections, as set forth.

6. A wall-paper-trimmi-ng machine having a bed and a guiding-edge at one end thereof, and a metallic adj ustable extensible wearingplate removably fitting said bed andprovided with an upwardly-extending edge at one side .to fit said guiding-edge, substantially as vdescribed; I

In testimony that I elaimtheforegoing as my own I affix my signature in presence of two witnesses.

FREDERICK W. MOELL'ER. \Vitnesses:

O. E. DUFFY, C. M. WERLE. 

